var veldArray = [];

function checkInArray(nam){
	var tst = false;
	for(var i=0;i<veldArray.length;i++){
		if(veldArray[i]==nam) tst = true;
	}return tst;
}
function clearField(elm){
	if(!checkInArray(elm.name)){
		veldArray.push(elm.name);
		elm.value="";
}}
function verifyMaillist(){
	var f = document.forms["maillist"];
	var myEmail;
	var pos1, pos2;
	var myErr;		
	myEmail = f.from.value;
	myErr = 0;		
	pos1 = myEmail.indexOf("@");
	if (pos1 <= 0) myErr = 1;
	if (myErr == 0){
		pos2 = myEmail.indexOf(".", pos1+2);
		if (pos2 < pos1) myErr = 1;
	}if (myErr == 1){
		alert(" U hebt geen (geldig) e-mailadres ingevuld.");
	}else{
		f.submit();
		/*
		with(f){
			alert(f.nieuwsbrief.options[f.nieuwsbrief.selectedIndex].value);		
		}		
		if(f.nieuwsbrief.options[f.nieuwsbrief.selectedIndex].value=='subscribe') f.mailsubject.value = 'subscribe icatt-news';
		else f.mailsubject.value = 'unsubscribe icatt-news';
		f.submit();
		*/
}}